Building and Scaling the Fastly Network - João Taveira at Fastly Altitude 2015
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Fastly Altitude - June 25, 2015. Fastly set out to build a highly performant, real-time CDN that is both reliable and scalable. This talk will cover how we chose to design our network and its unique routing and load balancing properties, as well as where we're going next. Video of the talk: http://fastly.us/Altitude2015_Networking João's bio: João Taveira is a network engineer at Fastly, where he is responsible for making dumb switches do clever things. In addition to writing software for network orchestration, João works on protocol design and performance, and holds a PhD from University College London or something to that effect.
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Building and Scaling the Fastly Network - João Taveira at Fastly Altitude 2015
- 1. Building and Scaling the Fastly Network joão taveira araújo (@jta) - Fastly
- 2. networking at fastly | joão taveira araújo networking introduction
- 3. networking at fastly | joão taveira araújo introduction
- 4. networking at fastly | joão taveira araújo every CDN does networking introduction
- 5. networking at fastly | joão taveira araújo we do something else introduction
- 6. what we do
- 7. networking at fastly | joão taveira araújo networking has no products what we do
- 8. networking at fastly | joão taveira araújo geographic reach? what we do
- 9. networking at fastly | joão taveira araújo what we do
- 10. networking at fastly | joão taveira araújo RTT POPs where most of you stopped caringorigin hitratio what we do
- 11. networking at fastly | joão taveira araújo bandwidth? what we do
- 12. networking at fastly | joão taveira araújo today Time Bandwidth where most of you stopped caring what we do
- 13. networking at fastly | joão taveira araújo bandwidth is market signalling what we do
- 14. networking at fastly | joão taveira araújo IPv6? what we do
- 15. networking at fastly | joão taveira araújo what we do
- 16. networking at fastly | joão taveira araújo the network is the computer John Gage Sun Microsystems what we do
- 17. networking at fastly | joão taveira araújo networking has limited marginal utility what we do
- 18. networking at fastly | joão taveira araújo the network is infrastructure what we do
- 19. networking at fastly | joão taveira araújo what we do
- 20. networking at fastly | joão taveira araújo the network is the application what we do
- 21. how we do it
- 22. networking at fastly | joão taveira araújo load balancing routing mitigation how we do it
- 25. $$$
- 26. not true
- 27. $$$
- 30. networking at fastly | joão taveira araújo load balancing mitigation routing how we do it
- 31. networking at fastly | joão taveira araújo load balancing mitigation routing how we do it
- 32. networking at fastly | joão taveira araújo the internet load balancing
- 33. networking at fastly | joão taveira araújo A B C D router load balancing
- 34. networking at fastly | joão taveira araújo A B C D router A 25% 25% 25% 25% B D C DNS load balancing
- 35. networking at fastly | joão taveira araújo A B C D router A 33% 33% 33% 0% B D C DNS load balancing
- 36. networking at fastly | joão taveira araújo A B C D load balancer State Cost Existingdemand Projecteddemand State Cost Existingdemand State Cost load balancing
- 37. networking at fastly | joão taveira araújo A B C D ECMP A B C D ECMP Destination network Next hop 10.0.0.0/24 A 10.0.0.0/24 B 10.0.0.0/24 C 10.0.0.0/24 D Destination network Next hop 10.0.0.0/24 B 10.0.0.0/24 C 10.0.0.0/24 D load balancing
- 38. networking at fastly | joão taveira araújo faild load balancing
- 39. networking at fastly | joão taveira araújo Destination network Next hop 10.0.0.0/24 10.1.A.1 10.0.0.0/24 10.1.A.2 10.0.0.0/24 10.1.A.3 … … A B C D faild IP Address MAC 10.1.A.1 A:A 10.1.A.2 A:A 10.1.A.3 A:A … load balancing
- 40. networking at fastly | joão taveira araújo drain a host load balancing
- 41. networking at fastly | joão taveira araújo Destination network Next hop 10.0.0.0/24 10.1.A.1 10.0.0.0/24 10.1.A.2 10.0.0.0/24 10.1.A.3 … … A B C D faild IP Address MAC 10.1.A.1 A:A 10.1.A.2 A:A 10.1.A.3 A:A … IP Address MAC 10.1.A.1 B:A 10.1.A.2 C:A 10.1.A.3 D:A … IP Address MAC 10.1.A.1 B:B 10.1.A.2 C:C 10.1.A.3 D:D … load balancing
- 42. networking at fastly | joão taveira araújo Time Activeflows Time Activeflows ecmp load balancing TimeActiveflows
- 43. networking at fastly | joão taveira araújo Time ActiveflowsState Time load balancer load balancing Time ActiveflowsState
- 44. networking at fastly | joão taveira araújo State Time Time ActiveflowsActiveflowsState Time faild load balancing Time ActiveflowsState
- 45. networking at fastly | joão taveira araújo $200,000 F5 BIG-IP 10350v load balancing
- 46. networking at fastly | joão taveira araújo load balancing mitigation routing how we do it
- 47. networking at fastly | joão taveira araújo load balancing mitigation routing how we do it
- 48. networking at fastly | joão taveira araújo How to build a PoP ‣ buy a router ‣ get BGP table from each provider ‣ install routes to FIB ‣ servers use default gateway router vendor BGP FIB A B C D routing
- 49. networking at fastly | joão taveira araújo ~$500,000 Juniper MX960 Router routing
- 50. networking at fastly | joão taveira araújo How to build a Fastly PoP ‣ buy switches ‣ reflect BGP down to servers ‣ inject multipath routes into FIB server FIB BGP daemon switch userspace BGP FIB routing
- 51. networking at fastly | joão taveira araújo distributedsystem server FIB BGP daemon switch userspace BGP FIB How packets egress Fastly ‣ switches emit nexthop IP and MAC ‣ servers configure p2p link / ARP ‣ send directly to provider nexthop! routing
- 52. networking at fastly | joão taveira araújo $29,995 Arista DCS-7150S switch family routing
- 53. networking at fastly | joão taveira araújo routing
- 54. networking at fastly | joão taveira araújo routing
- 55. networking at fastly | joão taveira araújo shortest path is not always best 📱 every flow is one syscall away from path change routing
- 56. networking at fastly | joão taveira araújo load balancing mitigation routing how we do it
- 57. networking at fastly | joão taveira araújo load balancing mitigation routing how we do it
- 58. networking at fastly | joão taveira araújo no BGP communities? mitigation
- 59. networking at fastly | joão taveira araújo don’t have large offpeak sinks? mitigation
- 60. networking at fastly | joão taveira araújo the Internet lots of POPs lots of routes mitigation
- 61. networking at fastly | joão taveira araújo can’t do arbitrary route injection? mitigation
- 62. networking at fastly | joão taveira araújo can’t do remote triggered blackholes? mitigation
- 63. networking at fastly | joão taveira araújo can’t do policy updates? mitigation
- 64. networking at fastly | joão taveira araújo not global? mitigation
- 65. networking at fastly | joão taveira araújo not consistent? mitigation
- 66. networking at fastly | joão taveira araújo not synchronous? mitigation
- 67. networking at fastly | joão taveira araújo not instant? mitigation
- 68. networking at fastly | joão taveira araújoCustomer summit 2015 © 2015 All rights Reserved
- 69. networking at fastly | joão taveira araújo the Internet lots of POPs one centralized policy lots of routes mitigation
- 70. networking at fastly | joão taveira araújo mitigation
- 71. networking at fastly | joão taveira araújo mitigation
- 72. networking at fastly | joão taveira araújo mitigation
- 73. networking at fastly | joão taveira araújo mitigation
- 74. networking at fastly | joão taveira araújo mitigation
- 75. why it matters
- 76. networking at fastly | joão taveira araújo resource pooling1 |rɪˈsɔːs puːlːɪŋ| make a collection of resources behave like a single pooled resource load balancing: a pool of servers. routing: a pool of providers. mitigation: a pool of pops. why it matters
- 77. networking at fastly | joão taveira araújo why don’t other CDNs do this? why it matters
- 78. networking at fastly | joão taveira araújo because they can’t change why it matters
- 79. networking at fastly | joão taveira araújo packet switching “unfeasible” why it matters
- 80. networking at fastly | joão taveira araújo why it matters
- 81. networking at fastly | joão taveira araújo why it matters
- 82. networking at fastly | joão taveira araújo 📱 why it matters
- 83. networking at fastly | joão taveira araújo ActiveflowsState Time why it matters
- 84. networking at fastly | joão taveira araújo RTT POPs why it matters
- 85. networking at fastly | joão taveira araújo